Execution of Suspicious Where (via process_creation)

title: Execution of Suspicious Where (via process_creation)
id: 0ae3cc6d-8960-5505-9b8e-700b1bcb12c4
status: stable
description: 'This rule detects threat actors may enumerate browser bookmarks to learn more about compromised hosts. Browser bookmarks may reveal personal information about users (ex: banking sites, interests, social media, etc.) as well as details about internal network resources such as servers, tools/dashboards, or other related infrastructure.'
references:
    - https://attack.mitre.org/techniques/T1217/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1217/T1217.md
author: Huntrule Team
date: 2026-01-21
tags:
    - attack.discovery
    - attack.t1217
logsource:
    category: process_creation
    product: windows
detection:
    where_exe:
        - Image|endswith: '\where.exe'
        - OriginalFileName: 'where.exe'
    where_opt:
        CommandLine|contains:
            - 'places.sqlite'
            - 'cookies.sqlite'
            - 'formhistory.sqlite'
            - 'logins.json'
            - 'key4.db'
            - 'key3.db'
            - 'sessionstore.jsonlz4'
            - 'History'
            - 'Bookmarks'
            - 'Cookies'
            - 'Login Data'
    condition: all of where_*
falsepositives:
    - Unknown
level: low